If Mike McCoy seeks a tall cornerback to match against his former team, Sean Smith could be on the short list.

Measured at 6-foot-3 1/2 coming out of Utah, Smith has half an inch on Broncos wideouts Eric Decker and Demaryius Thomas. The Dolphins, using the 61st pick in 2009, made Smith the tallest drafted cornerback since Bobby Taylor (6-3, '95).

At Utah, where he began as a receiver, he counted Eric Weddle among his teammates.

Smith is best suited to press coverage. His size works against him when he has to change directions. Durable, he's started 16 games in three of four NFL seasons. He has three forced fumbles, all coming last year. He's never topped two interceptions in a season.

Like many young corners, Smith is a streaky performer.

Young for an unrestricted free agent, the 25-year-old could stretch his salary by staying in Florida, which doesn't have a state income tax.

Here's the familiar takeaway: Smith is an interesting, if flawed, player who probably will cost more than the Chargers are willing to pay. Our Michael Gehlken reports they're more interested in Derek Cox, a zone-oriented, former Jaguar starters who's 20th on my most recent list of free agents. Smith is 17th.